http://www.openbsd.org/papers/tame-fsec2015/mgp00007.html
"Optional security is irrelevant (in the long term). Mitigation technologies which can be disabled -> fade into history"
This this this this this. As much as I like having control over my system and the ability to disable things, I've seen enough examples of users and corporate sysadmins taking years to fix basic security issues because there exists a quick and dirty workaround.